Simplify :-
(2x + 5y^2)^2 - 20xy^2
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Step-by-step explanation:
(2x+5y²)² - 20xy²
Use the formula (a+b)² = a²+2ab+b²
= {(2x)²+2×2x×5y²+(5y²)²} - 20xy²
= {4x²+20xy²+25y⁴} - 20xy²
= 4x²+20xy²+25y⁴-20xy²
+20xy² and -20xy² will be canceled as they are equal numbers with opposite signs
= 4x²+25y⁴
Åňşwəř
4x²+25y⁴
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